16555272321272 has 8 divisors (see below), whose sum is σ = 31041135602400. Its totient is φ = 8277636160632.

The previous prime is 16555272321241. The next prime is 16555272321307. The reversal of 16555272321272 is 27212327255561.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 16555272321272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034704520072 + ... + 1034704520087.

It is an arithmetic number, because the mean of its divisors is an integer number (3880141950300).

Almost surely, 2^{16555272321272} is an apocalyptic number.

It is an amenable number.

16555272321272 is a deficient number, since it is larger than the sum of its proper divisors (14485863281128).

16555272321272 is a wasteful number, since it uses less digits than its factorization.

16555272321272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069409040165 (or 2069409040161 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 50.

The spelling of 16555272321272 in words is "sixteen trillion, five hundred fifty-five billion, two hundred seventy-two million, three hundred twenty-one thousand, two hundred seventy-two".